31
Abstract
Example
1
2
3
b
a
c
d
e
P = {1,2,3}
L = {a,b,c,d,e}
binary relation RP
binary relation RL
RP={1,2),(2,1),(2,3)}
RL
= {(a,c),(c,a),(c,b),
(c,d),(e,c),(e,d)}
One
consistent labeling is {(1,a),(2,c),(3,d)